Jewel in the Palace Season 1 Episode 51

The Queen is shocked to find out that her own son, KyungWonDaeGun is suffering from smallpox. The only thing Queen can do to help her son is to hold a sacrifice ceremony wishing her son well. KyungWonDaeGun’s health takes a turn for the worse and Queen calls for JangGeum. JangGeum sincerely delivers treatment for KyungWonDaeGun.